A reciprocating multi-directional straw chopping and pulverizing device with length screening function

Abstract

The invention belongs to the field of agricultural machinery, and particularly relates to a reciprocating multi-directional straw cutting and crushing device with the function of length screening, including a frame assembly (1), a gearbox (3), a transmission assembly (4), a picking and conveying assembly (6), screenable reciprocating chopping and crushing device (7) and non-directional throwing assembly (8); the transmission assembly (4) includes a left primary chain drive (41), a right primary Chain transmission (42), secondary chain transmission (43) and crank connecting rod transmission mechanism (44); described picking up conveying assembly (6) includes picking up roller (60), profiling picking up knife (61), conveying roller ( 62) and delivery spring teeth (63); the screenable reciprocating chopping and crushing device (7) includes a crushing knife (70), a crushing screen (71) and a crushing screen mounting plate (72); the non-directional The throwing assembly (8) includes a throwing drum (80), a throwing vane (81), a guide vane (82) and a throwing drum shaft (84).

Description

technical field [0001] The invention belongs to the field of agricultural machinery, in particular to a reciprocating multi-directional straw cutting and crushing device with the function of length screening. Background technique [0002] The annual output of straw in my country is more than 800 million tons, which has the characteristics of various types, large total amount and wide distribution. Straw returning directly to the field is an effective form of straw treatment, which can play a role in wind and soil consolidation, flow reduction and infiltration, water storage and moisture conservation, water saving and drought resistance, fertilization and soil fertility, and increase in production and income. The existing straw returning machine has two types: the straw returning machine matched with the combine harvester and the straw returning machine pulled by the tractor; the tractor-drawn straw crushing machine is divided into two categories: direct straw covering return...

AI Technical Summary

Problems solved by technology

[0004] In view of the above technical problems, the purpose of the present invention is to provide a reciprocating multi-directional straw chopping and crushing device with the function of length screening, which can not only effectively pick up messy straws, but also use the chopping mechanism in the working process to rely on The knife reciprocates up and down to crush the straw. Fine crushing can be achieved by adjusting the movement speed of the chopping knife. Multi-directional cutting can be realized through the special design of the chopping blade. The straw screening function can be realized through the design of the screen. The straw throwing power is provided by the non-directional throwing assembly, and the straw is scattered through the guide vane to achieve uniform throwing, which solves the problems of low crushing pass rate and uneven throwing

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